chore(deps): update actions/checkout action to v7

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Checkout
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
 
       - name: Install pnpm
         uses: pnpm/action-setup@0ebf47130e4866e96fce0953f49152a61190b271 # v6.0.9